Sanguine Sacrament [Ixalan] Avatar Praetor if this card was Synchro

if this card was Synchro Summoned using "Black Rose Dragon" or a Plant Synchro Monster as material

You may put an Aura card with mana value X or less from your hand onto the battlefield attached to it

Set: Duelist Pack 1: Jaden Yuki Card type: Effect Monster Rarity: Common Attack: 800 Defense: 1200 If this is the only card in your hand

Set: Champions of Kamigawa Type: Sorcery — Arcane Rarity: Common Cost: {R} Lava Spike deals 3 damage to target player or planeswalker

change it to Attack Position at the end of the Damage Step

Sanguine Sacrament [Ixalan] Avatar Praetor if this card was SynchroSet: Ixalan Type: Instant Rarity: Rare Cost: {X}{W}{W} You gain twice X life. Put Sanguine Sacrament on the bottom of its owner's library. "As the sun sets to make way for dawn, so we turn to darkness to bring about the coming salvation."